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  • Nonlinear response of laterally loaded piles and pile groups

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    56575_1.pdf (368.1Kb)
    Author(s)
    Guo, Wei Dong
    Griffith University Author(s)
    Guo, Wei Dong D.
    Year published
    2009
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    Abstract
    In spite of extensive studies on laterally loaded piles carried out over years, none of them offers an expedite approach as to gaining nonlinear response and its associated depth of mobilisation of limiting force along each pile in a group. To serve such a need, elastic-plastic solutions for free-head, laterally loaded piles were developed recently by the author. They allow the response to be readily computed from elastic state right up to failure, by assigning a series of slip depths, and a limiting force profile (LFP). In this paper, equivalent solutions for fixed-head single piles were developed. They are subsequently ...
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    In spite of extensive studies on laterally loaded piles carried out over years, none of them offers an expedite approach as to gaining nonlinear response and its associated depth of mobilisation of limiting force along each pile in a group. To serve such a need, elastic-plastic solutions for free-head, laterally loaded piles were developed recently by the author. They allow the response to be readily computed from elastic state right up to failure, by assigning a series of slip depths, and a limiting force profile (LFP). In this paper, equivalent solutions for fixed-head single piles were developed. They are subsequently extended to cater for response of pile groups by incorporating p-multipliers. The newly established solutions were substantiated by existing numerical solutions for piles and pile groups. They offer satisfactory prediction of nonlinear response of all the 6 single piles and 24 pile groups investigated so far after properly considering the impact of semi-fixed head restraints. They also offer the extent to ultimate state of pile groups via the evaluated slip depths. The study allows ad hoc guidelines to be established for determining input parameters for the solutions. The solutions are tailored for routine prediction of nonlinear interaction of laterally loaded fixed-head piles and capped pile groups.
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    Journal Title
    International Journal for Numerical and Analytical Methods in Geomechanics
    Volume
    33
    Issue
    7
    DOI
    https://doi.org/10.1002/nag.746
    Copyright Statement
    © 2009 John Wiley & Sons, Ltd. This is the pre-peer reviewed version of the following article: International Journal for Numerical and Analytical Methods in Geomechanics Volume 33, Issue 7, pages 879–914, May 2009, which has been published in final form at http://dx.doi.org/10.1002/nag.746
    Subject
    Civil Geotechnical Engineering
    Civil Engineering
    Publication URI
    http://hdl.handle.net/10072/25628
    Collection
    • Journal articles

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